called my cell phone, they did not say anything, call remained open for about 20 seconds in silence, then they hung up.

caller
id just says michigan

Michigan

Mar 09th, 2017

called, they did not say anything, call remained open for about 20 seconds in silence, then they hung up. I called back and I get a message that says "this call cannot be completed as dialed, please check the number and dial again".